How to get 2100 MS Points for £8
Well, £8.19. Alert viewers will recall WoSblog's highly popular recent review of Perfect Dark on XBLA, which noted that the developers had done a half-arsed job of porting the controls over, incompetently removing both legacy and southpaw options that were present in the N64 original. Well, now at least you have the chance to pay a half-arsed price for it too.
As the more observant will already have deduced, the trick is to buy your MS points from Littlewoods. If you sign up a new account (if you've already got one, just use a different payment card), add the 2100-point card to your basket, then apply the promotional code ZZ425 at the checkout for a £15 discount. (Normally you have to spend over £25, but this code seems to work on any purchase.)
That brings the price down to £9, which means that an 800-point title like Perfect Dark (or some other title whose developers aren't useless cretins) will be costing you just £3.43. However, if you have a Quidco account (free), you can access the Littlewoods site through that, saving another 9% and bringing the cost of an 800-point game down to just £3.12.
As the image shows, I've tested the code myself and it works, so now I'm off to buy a whole bunch of Xbox Indie Games instead for 31p a pop, but I'll have enough points left over to get PD if 4J Studios ever pull their fingers out of their holes and do their jobs properly. The code, incidentally, should also work for buying Wii Points cards, but WoSblog does not endorse giving money to Nintendo.